Welcome!

A single-wall tent for a wide variety of weather conditions, from mid-summer heat to wintery snow, is just about impossible.

In no particular order:

WPB fabrics can certainly help, but there aren't a lot to choose among. The best all-around performing fabric is eVent, but you have to look overseas to find a tent made of the stuff. They are available and priced similarly to the Bibler and ID options. The Epic tents by Black Diamond are a nice option for reducing cost, weight and condensation, but they will wet through in heavy downpours, so consider that before buying.

Impermeable single-wall tents rely completely on aggressive ventilation to reduce condensation, but conditions can definitely overwhelm even the best designs. A calm, cold night in a soggy setting will create condensation even on an open tarp. If they're roomy enough to avoid the walls you can live with a certain amount of condensation, but at some point it will actually drip on you unless the walls are quite steep. I like teepee style floorless tents like the old Golite Hex as a versatile and lightweight option.

Double-wall designs have shed some weight, so might still be an option. You might look at Big Sky and their double-wall modular three/four-season tents. You can mix and match poles and flies and other bits to cut weight and increase ventilation in the summer, and go bombproof in the winter. Again, not cheap.

Goretex tents went off the market with enhanced fire-retandant regs. Too bad, that.

Cheers,